Why is the element Neon (Ne) chemically stable?

Has a full outer shell of electrons

Describe the three subatomic particles of an atom, including their charges and locations.

Protons (positive, nucleus), Neutrons (neutral, nucleus), Electrons (negative, electron cloud)

Which of the following correctly represents the Bohr model of a neutral lithium (Li) atom (atomic number 3)?

A nucleus with 3 protons and 3 neutrons, 2 electrons in the first shell, and 1 electron in the second shell

Which of the following best explains the difference between ionic and covalent bonds, and gives an example of each?

Ionic bonds involve the transfer of electrons (e.g., NaCl), while covalent bonds involve the sharing of electrons (e.g., H2O).

Signs that a chemical reaction has occurred?

Change in color and formation of a gas

How does the arrangement of electrons influence chemical bonding?

It determines how atoms interact and bond with each other.

The periodic table is important in understanding elements and their chemical behavior because it organizes elements by their atomic number, groups, and periods. Which of the following best explains this importance?

It groups elements with similar properties together and shows trends in chemical behavior.

A pure substance that consists of only one type of atom. Examples: Oxygen (O), Carbon (C)

What is the charge and location of a proton in an atom?

Positively charged; located in the nucleus

What is the charge and location of a neutron in an atom?

No charge (neutral); located in the nucleus

What is the charge and location of an electron in an atom?

Negatively charged; located in orbitals surrounding the nucleus

Bohr Model of Lithium

3 protons in the nucleus; 3 neutrons (optional for detail); 2 electrons in the first energy level; 1 electron in the second energy level

What is the difference between ionic bonds and covalent bonds?

Ionic bonds: Transfer of electrons from one atom to another (e.g., NaCl). Covalent bonds: Sharing of electrons between atoms (e.g., H2O).

Name two signs of a chemical reaction.

Color change (e.g., iron rusting); Gas production (e.g., vinegar reacting with baking soda)

The structure of an atom consists of which of the following, and how do atoms bond to become stable?

Protons, neutrons, and electrons; by sharing or transferring electrons to achieve a full outer shell

What information does the periodic table provide about elements?

It shows atomic number, element symbol, atomic mass, and element groups.

The process of combustion in car engines is important because it:

Produces energy to move the car

Chemistry Final Flashcards

Student preview

30 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Which of the following is NOT a branch of chemistry? Organic chemistry, Physical chemistry, Astrophysics, Inorganic chemistry

Back

Astrophysics

2.

FLASHCARD QUESTION

Front

Which subatomic particle has a negative charge?

Back

Electron

3.

FLASHCARD QUESTION

Front

The number of protons in an atom is also known as the:

Back

Atomic number

4.

FLASHCARD QUESTION

Front

Where are electrons located?

Back

The orbitals

5.

FLASHCARD QUESTION

Front

Which type of bond involves the sharing of electrons?

Back

Covalent

6.

FLASHCARD QUESTION

Front

Sodium (Na) and chlorine (Cl) form what kind of bond?

Back

Ionic

7.

FLASHCARD QUESTION

Front

What is produced during a chemical reaction?

Back

Products

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